Tydlig updated but still no save

Which is a real shame in my view. I mean, I understand that it isn’t always easy to give users what they want, but this is a feature that I think would make this app so much better, so much more usable. So why not add it? I’m not sure I understand this at all.

I might even have to find myself another calculator app that does what I want it to do. I’d rather not, but what else can I do?